Symlink external/bazelbuild-rules_go in mock tests

Test: TH
Change-Id: I067bda143252c66bfac63699d51ca3b80f5a5f63
diff --git a/tests/lib.sh b/tests/lib.sh
index b5dea99..4aaf272 100644
--- a/tests/lib.sh
+++ b/tests/lib.sh
@@ -144,6 +144,7 @@
   symlink_directory prebuilts/jdk
   symlink_directory external/bazel-skylib
   symlink_directory external/bazelbuild-rules_android
+  symlink_directory external/bazelbuild-rules_go
   symlink_directory external/bazelbuild-rules_license
   symlink_directory external/bazelbuild-kotlin-rules